Frequencies for first 10,000 rows of prov4210 variable in posclia2001 dataset :

   prov4210 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,767       97.67       97.67
          X |        233        2.33      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016